CN102269662B - Rapid sample transferring method for sustaining stable pressure - Google Patents
Rapid sample transferring method for sustaining stable pressure Download PDFInfo
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- CN102269662B CN102269662B CN 201010199052 CN201010199052A CN102269662B CN 102269662 B CN102269662 B CN 102269662B CN 201010199052 CN201010199052 CN 201010199052 CN 201010199052 A CN201010199052 A CN 201010199052A CN 102269662 B CN102269662 B CN 102269662B
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Abstract
The invention relates to a rapid sample transferring method for sustaining stable pressure. The method is characterized in that: micro adjusting sample transferring valves are respectively arranged on an outlet of a sample collector/sample mixing device, an inlet and an outlet of a test/experiment apparatus; a sample transferring hand wheel is arranged on a handle of a plunger pump; the sample transferring valves are opened stepedly, wherein the sample transferring valve arranged on the outlet of the sample collector/sample mixing device is firstly opened, the sample transferring valve arranged on the inlet of the test/experiment apparatus is secondly opened, the sample transferring valve arranged on the outlet of the test/experiment apparatus is lastly opened; pressure change is monitored during opening the sample transferring valves; the sample transferring hand wheel is rotated to sustain the process system pressure until the sample transferring is finished. With the method provided by the present invention, the control degree of the plunger pump is improved; the stable pressure during the sample transferring process is sustained; the rotational strength is reduced by 30% so as to protect the personal safety of the operator at the negligence state; the rotational strength is reduced by about 50% while the requirement of rapid rotation can be met.
Description
Technical field
This method relates to a kind of quick commentaries on classics quadrat method of keeping pressure stability.
Background technology
In oil physical-property parameter experiments of measuring, sampler or oil, the gas sample transfer of joining in the sample device need be arrived in the test container cavity, change in the sample process requiring to keep the oil reservoir high-temperature high-pressure state in the flow process pipeline, avoid pressure to be lower than bubble point pressure, prevent the change of component in the crude oil sample.The part oil displacement experiment also requires the oil gas sample to keep pressure stability in the pipeline flow process.Changeing the sample process is the early-stage preparations process of parameter measurement and experimental study, and how guaranteeing to change the sample quality is the basis that subsequent experimental can effectively be carried out.Common way is to utilize the switch and the speed of common needle valve gate control flow path switch, is sampler/join sample device supplementary pressure fast with ram pump simultaneously, realizes the stable of pressure.
The advantage of this method is to change the sample simple operation, but has following 3 shortcomings:
1. common aciculiform valve is to adopt the airtight mode valve-off of cone.Accomplish tiny flow quantity, during Open valve, must make valve rod cone mention highly very small (that is: the handle for valve stem rotational angle is very little), make liquid/gas by the time rely on self and interpyramidal capillary force control flow velocity.Because the unlatching of each valve is firmly different, thereby has more strengthened the control difficulty.
2. in order to keep the pressure stability of changeing the sample process, ram pump must quick rotation could effectively cooperate the opening process of common valve.The valve opening degree is the major influence factors of requirement ram pump velocity of rotation, concern in the experiments of measuring at PVT, the ram pump velocity of rotation requires to realize replenishing of pressure reduction 1～10MPa in 0.1 second, this situation makes the ram pump of electronic control can't satisfy the requirement of keeping pressure automatically, must handle with manual mode.Rotation process requires very high to effector's experience and reaction velocity.
3. manually control ram pump and have serious potential safety hazard, when sample strain was 50MPa, manually end applied the power of 1.2KN approximately, and a people is difficult to finish control, is controlled simultaneously by two people usually, and compounding practice is proposed high requirement.Under the situation that neglecting appears in the control people, the ram pump counter-rotating, the handle high-speed rotation makes the effector very easily injured.Simultaneously, sample strain reduction fast causes gas composition separation in the crude oil, makes sample preliminary work complete failure.
Summary of the invention
The purpose of this invention is to provide a kind of quick commentaries on classics quadrat method of keeping pressure stability.
The quick commentaries on classics quadrat method of keeping pressure stability of the present invention is at first utilized a kind of commentaries on classics sample of gear matched principle design valve, improve the rotation precision of valve rod cone, distance between cone and valve body can effectively be controlled, next designs a kind of ram pump handwheel, preparation major diameter wheel disc on four single pole control handles, safety not only, and laborsaving.
Measure and experiment before, before sampler/join sample device endpiece, test or empirical model, install and change the sample valve, install on the ram pump and change the sample handwheel.When changeing sample, the effector slowly opens changes sample valve and monitor pressures variation, and another effector rotates the sample handwheel and keeps flow system pressure when monitor pressures changes, until changeing the sample end.
Testing tool and principle of work
The composition and the major function of changeing the sample valve comprise:
1. gear has three gears.The main drive gear diameter that the left side is connected with valve rod cone is bigger, by rotating unlatching or blinding off a line; The right side gear diameter is less, is connected with handle, is used to control rotational angle; Neutral gear transmits the rotation of right side gear, and the rotation direction of left side gear and handle is consistent.Considering that under the strength of gear situation, the radius ratio of design gear wheel and pinion wheel is 3: 1, can satisfy the transmission of 70MPa pressure.
2. valve rod and pressure cap, valve rod cooperates with left side gear, and the end is cone shape, is used for and valve seal.Pressure cap makes screw rod keep stable, and sealing screw rod and peripheral space.
3. bearing has four.Effect is that left side and neutral gear are rotated flexibly.
4. handle is used for control and rotates.
5.M8 interface, connection sampler/join the outlet of sample device and test cavity/experiment flow inlet, the M8 size is the interface size of generally using in the experiment flow.
6.1mm pipeline is the fluid passage, the thin more control that helps flow velocity of pipeline, cross detailed rules and regulations cause flow velocity low excessively, change the sample time lengthening, in conjunction with commentaries on classics sample experience, the design pipeline diameter is 1mm.
7. round section joint ring seals to pipeline and two parts of gear drive.
8. fastening bolt fastens as one pipeline and two parts of gear drive.
The composition and the major function of changeing the sample handwheel comprise:
1. handwheel, overall diameter is 1000mm, and the more original four bar handles of large-diameter circular handwheel improve 30% moment of torsion, and manipulation strength reduces.Handwheel thickness and width are 30mm, and be inboard for the finger shape, is convenient to grasping.Under the situation of misoperation, handwheel reversing, disc-shape effectively protects the operator not clashed into by handle.
2. axis, internal diameter is 100mm, this design is considered that screw rod that ram pump promotes piston can pass and is not subjected to stop in axis, and easy operating is positioned at the locking button of screw rod one side.Consider that to bear moment of torsion bigger, the axis Thickness Design is 30mm.Design unique ratchet structure in the axis outside in addition, can realize the purpose of laborsaving and quick rotation in conjunction with special ratchet wrench (length 650mm).It is nearly 50% that ratchet design can reduce rotational strength on the whole, and can satisfy the requirement of quick rotation.Ratchet wrench and handle are used under the situation of pressure lower (30MPa), can realize one man operation.
3. bearing bar plays a part to connect handle and axis, and its top is welded with clamp.
4. clamp is used for matching with four handles of ram pump, bears rotation torsion.Because of the ram pump handle has certain angle, the groove in the corresponding clamp also is processed into the angle of inclination.The clamp root is thickeied and is welded with bearing bar.There is internal thread through hole the clamp both sides, realize fixing in conjunction with the threading bolt.
Quick commentaries on classics quadrat method of the present invention:
1. at the entrance and exit of the outlet of sampler/join sample device, test/experimental provision trace is installed and is regulated commentaries on classics sample valve;
2. parameter measurement or experiment flow connect in a conventional manner.
3. will change the sample handwheel and be installed on the ram pump handle, clamp be fixed, ratchet wrench will be installed with the threading bolt.
4. the sample valve is changeed in stage unlatching, at first be slowly to open the outlet of sampler/join sample device to change the sample valve, and monitor pressures changes, when pressure is low (30MPa), ram pump is kept pressure stability control can realize one man operation, an i.e. handgrip handrail wheel handle, the another hand is controlled ratchet wrench, if two people operation then uses handwheel to get final product merely.When pressure was higher, still two people's compounding practices were adopted in suggestion, and a people is responsible for handrail is taken turns, and an other people mainly is responsible for the reinforcing of ratchet wrench.Next is that the inlet of opening test/experimental provision changes the sample valve, is at last to open the outlet of test/experimental provision to change the sample valve, and two operation stepss are identical with aforesaid operations, finish until changeing sample.
Compare with common commentaries on classics quadrat method, the present invention has the following advantages:
1. realize the opening degree that trace is regulated changes the sample valve, be easy to control the flowing velocity of oil gas sample, improve the pressure that changes in the sample process and keep level;
2. the handle design of handwheel has been improved the control degree of ram pump, reduces rotational strength 30%, and whole circle has ensured the personal safety of operator when inattentive state.It is nearly 50% that the design of ratchet reduces rotational strength on the whole, and can satisfy the requirement of quick rotation.
Description of drawings
Fig. 1 changes sample valve arrangement synoptic diagram.
Fig. 2 changes sample handwheel structural representation.
Fig. 3 changes sample handwheel structure schematic side view.
Fig. 4 changes the schematic flow sheet of quadrat method fast.
Fig. 5 ratchet wrench structural representation.
Fig. 6 clamp structural representation.
Wherein: 1, main drive gear 2, pressure cap 3, middle gear 4, axle 5, bearing 6, handle 7, axostylus axostyle 8, pinion wheel 9, pipeline case 10, M8 interface 11,1mm pipeline 12, O type circle 13, trip bolt 14, valve rod 15, gear case 16, change sample handwheel 17, ram pump handle 18, change sample ram pump 19, sampler/join sample device 20, test/experimental provision 21, discharge collection 22, change sample valve 23, ratchet wrench 24, threading bolt 16-1, bearing bar 16-2, axis 16-3, handwheel 16-4, clamp
Embodiment
Change sample valve (see figure 1) by gear set, pipeline and valve rod constitute, gear set is arranged in gear case 15, there are three gears to constitute, main drive gear 1 diameter that is positioned at the left side is bigger, the bottom is that the valve rod 14 of cone passes main drive gear 1 center, the upper end is fixed on gear case 15 tops by pressure cap 2, the middle gear 3 that is arranged in main drive gear 1 right side is fixing by axle 4 that is fixed on gear case and bearing 5, diameter is little than main drive gear 1, be connected with main drive gear 1 gear, be positioned at the pinion wheel 8 diameter minimums on middle gear 3 right sides, by the axostylus axostyle 7 and the bearing fixing that are fixed in the gear case, axostylus axostyle 7 passes the gear case top and is connected with handle 6, and the radius ratio of gear wheel and pinion wheel is 3: 1; 1mm pipeline 11 is arranged in pipeline case 9, and two ends are connected with M8 interface 10, and valve rod 14 bottom cones are passed the pipeline case and can the rotation by gear wheel opened or blind off a line, and by trip bolt 13 pipeline case and gear case are fixed as one.This commentaries on classics sample valve can satisfy the transmission of 70MPa pressure.
Change the sample handwheel and (see Fig. 2,3) by handwheel 16-3, axis 16-2, bearing bar 16-1 and clamp 16-4 form, axis 16-2 is positioned at the center of handwheel 16-3, axis 16-2 is a hollow short column, the screw rod that ram pump promotes piston passes in axis, the axis outside is a ratchet structure, ratchet wrench and ratchet structure are complementary, handwheel 16-3 is a disc-shape, the finger shape is established in the inboard, by four bearing bar 16-1 handwheel 16-3 and axis 16-2 are linked together, clamp 16-4 is provided with the angle of inclination corresponding grooves with ram pump handle 17, and the clamp root is thickeied and welded with bearing bar, and the clamp both sides are provided with internal thread through hole.
By threading bolt 24 that clamp is fixing with the ram pump handle 17 that changes sample ram pump 18, ratchet wrench 23 is installed on the ratchet structure that changes the sample handwheel axis outside, and sample valve 22 is installed in sampler/join 19 outlets of sample device with changeing, the entrance and exit of test/experimental provision 20 of being connected with discharge collection 21.
Slowly open that sampler/joining the outlet of sample device changes the sample valve, when pressure≤30MPa, ram pump is kept pressure stability control can realize one man operation, i.e. a handgrip handrail wheel handle, and the another hand is controlled ratchet wrench, if two people operation then uses handwheel to get final product merely; When pressure is higher, two people's compounding practices, a people is responsible for handrail is taken turns, and an other people mainly is responsible for the reinforcing of ratchet wrench; Next is that the inlet of opening test/experimental provision changes the sample valve, is at last to open the outlet of test/experimental provision to change the sample valve, and two operation stepss are identical with aforesaid operations, finish until changeing sample.
The statistics contrast of equivalent is carried out with former commentaries on classics quadrat method in this commentaries on classics quadrat method time back surplus enforcement 50, and comparing result sees Table 1.
Two kinds of comparing results that change quadrat method of table 1
| The contrast project | Experiment number | Effective degree | Success ratio % | Failure cause |
| Former commentaries on classics quadrat method | 50 | 38 | 76 | Because viscosity of crude is bigger, valve is restive, and the valve opening degree is bigger when crude oil flow, ram pump pressure occurs and is lower than the bubble point pressure situation, changes the sample quality and is affected totally 8 times.Handle control carelessness, the handle counter-rotating is out of control, and pressure is lower, does not cause the bump injury, totally 2 times.Handle control carelessness, the handle counter-rotating is out of control, and pressure is higher, once injures operator one people, and degree is lighter; Once injure two operators, people's palm swelling, the inboard hemostasis of people's forearm, extent of injury is comparatively serious, totally 2 times |
| Adopt the commentaries on classics quadrat method of changeing sample valve and handwheel | 50 | 48 | 96 | Handwheel control carelessness, the handwheel counter-rotating is out of control, ram pump pressure occurs and is lower than the bubble point pressure situation, changes the sample quality and is affected totally 2 times.Be subjected to handwheel protection, 2 times the personnel that all do not cause of losing efficacy injure. |
Contrast as can be known:
Adopt to change the commentaries on classics quadrat method of sample valve and handwheel and can effectively keep the pressure stability of changeing in the sample process, significantly improve and change the effective success ratio of sample, provide effective guarantee operator's personal safety.
Claims (1)
1. quick commentaries on classics quadrat method of keeping pressure stability is characterized in that:
1. at the entrance and exit of the outlet of sampler/join sample device, test/experimental provision trace is installed and is regulated commentaries on classics sample valve;
2. will change the sample handwheel and be installed on the ram pump handle, clamp be fixed, ratchet wrench will be installed with the threading bolt;
3. the sample valve is changeed in stage unlatching, at first be slowly to open the outlet of sampler/join sample device to change the sample valve, next is that the inlet of opening test/experimental provision changes the sample valve, be to open the outlet of test/experimental provision to change the sample valve at last, open monitor pressures variation in the process of changeing the sample valve, rotate the sample handwheel and keep flow system pressure, finish until changeing sample;
Described commentaries on classics sample valve is by gear set, pipeline and valve rod constitute, gear set is arranged in gear case, constitute by three gears, the main drive gear diameter that is positioned at the left side is bigger, the bottom is that the valve rod of cone passes the main drive gear center, the upper end is fixed on the gear case top by pressure cap, the middle gear that is arranged in the main drive gear right side is by the axle and the bearing fixing that are fixed on gear case, diameter is little than main drive gear, be connected with the main drive gear gear, be positioned at the pinion wheel diameter minimum on middle gear right side, by the axostylus axostyle and the bearing fixing that are fixed in the gear case, axostylus axostyle passes the gear case top and is connected with handle, and the radius ratio of main drive gear and pinion wheel is 3:1; The 1mm pipeline is arranged in the pipeline case, and two ends are connected with the M8 interface, and valve rod bottom cone is passed the pipeline case and can the rotation by main drive gear opened or blind off a line, and by trip bolt pipeline case and gear case is fixed as one; Change the transmission that the sample valve can satisfy 70MPa pressure;
Described commentaries on classics sample handwheel is made up of handwheel, axis, bearing bar and clamp, axis is positioned at the center of handwheel, axis is a hollow short column, the screw rod that ram pump promotes piston passes in axis, the axis outside is a ratchet structure, ratchet wrench and ratchet structure are complementary, handwheel is a disc-shape, the finger shape is established in the inboard, by four bearing bars handwheel and axis are linked together, clamp is provided with the angle of inclination corresponding grooves with the ram pump handle, and the clamp root is thickeied and welded with bearing bar, and the clamp both sides are provided with internal thread through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010199052 CN102269662B (en) | 2010-06-04 | 2010-06-04 | Rapid sample transferring method for sustaining stable pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010199052 CN102269662B (en) | 2010-06-04 | 2010-06-04 | Rapid sample transferring method for sustaining stable pressure |
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| CN102269662A CN102269662A (en) | 2011-12-07 |
| CN102269662B true CN102269662B (en) | 2013-07-31 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364239B (en) * | 2012-10-31 | 2015-03-25 | 中国石油化工股份有限公司 | High-pressure physical property sample transferring device for formation test |
| CN103821504B (en) * | 2014-02-26 | 2016-04-06 | 南通市飞宇石油科技开发有限公司 | HTHP formation fluid analysis instrument turn sample lazy-tongs |
| CN104374622B (en) * | 2014-11-06 | 2017-03-08 | 中国石油天然气股份有限公司 | Oil gas sample turns sample device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4720998A (en) * | 1986-06-13 | 1988-01-26 | Hogue James D | Crude oil sampling system |
| CN200940695Y (en) * | 2006-08-23 | 2007-08-29 | 阳泉阀门股份有限公司 | Quick opening and closing sluice valve for city gas |
| CN201373817Y (en) * | 2009-03-26 | 2009-12-30 | 新疆油田勘查设计研究院 | Oil gas constant pressure airtight sampling and sample introduction device |
| CN201448450U (en) * | 2009-06-19 | 2010-05-05 | 常州市奇杰机电制造有限公司 | Thrust type manual valve |
-
2010
- 2010-06-04 CN CN 201010199052 patent/CN102269662B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4720998A (en) * | 1986-06-13 | 1988-01-26 | Hogue James D | Crude oil sampling system |
| CN200940695Y (en) * | 2006-08-23 | 2007-08-29 | 阳泉阀门股份有限公司 | Quick opening and closing sluice valve for city gas |
| CN201373817Y (en) * | 2009-03-26 | 2009-12-30 | 新疆油田勘查设计研究院 | Oil gas constant pressure airtight sampling and sample introduction device |
| CN201448450U (en) * | 2009-06-19 | 2010-05-05 | 常州市奇杰机电制造有限公司 | Thrust type manual valve |
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| CN102269662A (en) | 2011-12-07 |
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